[antlr-interest] Define "function" as numerical and alphanumerical expression

[David-Sarah Hopwood]

David-Sarah Hopwood wrote:
> My advice would be to use a conventional operator precedence grammar,
> as below (now that I've spent the time to fix the grammar I might as
> well give you this part of it), and check types after parsing.
> 
[...]
> logical_expression           : not_expression (logical_op not_expression)* ;
[...]
> numerical_expression         : primary_expression
>                                  (numOp primary_expression)* ;

Incidentally, this treats AND and OR as having the same precedence, and
similarly for all numeric operators. That is probably not what you want
in practice; the grammar should have a separate rule for each precedence
level.

-- 
David-Sarah Hopwood  ⚥  http://davidsarah.livejournal.com

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